src/surf/sg_platf.cpp

   1 /* Copyright (c) 2006-2014. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "xbt/misc.h"
   8 #include "xbt/log.h"
   9 #include "xbt/str.h"
  10 #include "xbt/dict.h"
  11 #include "xbt/RngStream.h"
  12 #include <xbt/functional.hpp>
  13 #include <xbt/signal.hpp>
  14 #include "src/surf/HostImpl.hpp"
  15 #include "surf/surf.h"
  16
  17 #include "src/simix/smx_private.h"
  18
  19 #include "src/include/simgrid/sg_config.h"
  20 #include "src/surf/xml/platf_private.hpp"
  21
  22 #include "src/surf/cpu_interface.hpp"
  23 #include "src/surf/network_interface.hpp"
  24 #include "surf/surf_routing.h" // FIXME: brain dead public header
  25
  26 #include "src/kernel/routing/AsImpl.hpp"
  27 #include "src/kernel/routing/AsCluster.hpp"
  28 #include "src/kernel/routing/AsClusterTorus.hpp"
  29 #include "src/kernel/routing/AsClusterFatTree.hpp"
  30 #include "src/kernel/routing/AsClusterDragonfly.hpp"
  31 #include "src/kernel/routing/AsDijkstra.hpp"
  32 #include "src/kernel/routing/AsFloyd.hpp"
  33 #include "src/kernel/routing/AsFull.hpp"
  34 #include "src/kernel/routing/AsNone.hpp"
  35 #include "src/kernel/routing/AsVivaldi.hpp"
  36
  37 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  38
  39 XBT_PRIVATE xbt_dynar_t mount_list = nullptr;
  40
  41 namespace simgrid {
  42 namespace surf {
  43
  44 simgrid::xbt::signal<void(sg_platf_link_cbarg_t)> on_link;
  45 simgrid::xbt::signal<void(sg_platf_cluster_cbarg_t)> on_cluster;
  46 simgrid::xbt::signal<void(void)> on_postparse;
  47
  48 }
  49 }
  50
  51 static int surf_parse_models_setup_already_called = 0;
  52
  53 /* Turn something like "1-4,6,9-11" into the vector {1,2,3,4,6,9,10,11} */
  54 static std::vector<int> *explodesRadical(const char*radicals){
  55   std::vector<int> *exploded = new std::vector<int>();
  56   char *groups;
  57   unsigned int iter;
  58
  59   //Make all hosts
  60   xbt_dynar_t radical_elements = xbt_str_split(radicals, ",");
  61   xbt_dynar_foreach(radical_elements, iter, groups) {
  62
  63     xbt_dynar_t radical_ends = xbt_str_split(groups, "-");
  64     int start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
  65     int end=0;
  66
  67     switch (xbt_dynar_length(radical_ends)) {
  68     case 1:
  69       end = start;
  70       break;
  71     case 2:
  72       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
  73       break;
  74     default:
  75       surf_parse_error("Malformed radical: %s", groups);
  76       break;
  77     }
  78
  79     for (int i = start; i <= end; i++)
  80       exploded->push_back( i );
  81
  82     xbt_dynar_free(&radical_ends);
  83   }
  84   xbt_dynar_free(&radical_elements);
  85
  86   return exploded;
  87 }
  88
  89
  90 /** The current AS in the parsing */
  91 static simgrid::kernel::routing::AsImpl *current_routing = nullptr;
  92 static simgrid::kernel::routing::AsImpl* routing_get_current()
  93 {
  94   return current_routing;
  95 }
  96
  97 /** Module management function: creates all internal data structures */
  98 void sg_platf_init() {
  99 }
 100
 101 /** Module management function: frees all internal data structures */
 102 void sg_platf_exit() {
 103   simgrid::surf::on_link.disconnect_all_slots();
 104   simgrid::surf::on_cluster.disconnect_all_slots();
 105   simgrid::surf::on_postparse.disconnect_all_slots();
 106
 107   /* make sure that we will reinit the models while loading the platf once reinited */
 108   surf_parse_models_setup_already_called = 0;
 109   surf_parse_lex_destroy();
 110 }
 111
 112 /** @brief Add an "host" to the current AS */
 113 void sg_platf_new_host(sg_platf_host_cbarg_t host)
 114 {
 115   xbt_assert(sg_host_by_name(host->id) == nullptr, "Refusing to create a second host named '%s'.", host->id);
 116
 117   simgrid::kernel::routing::AsImpl* current_routing = routing_get_current();
 118   if (current_routing->hierarchy_ == simgrid::kernel::routing::AsImpl::RoutingMode::unset)
 119     current_routing->hierarchy_ = simgrid::kernel::routing::AsImpl::RoutingMode::base;
 120
 121   simgrid::kernel::routing::NetCard *netcard =
 122       new simgrid::kernel::routing::NetCardImpl(host->id, simgrid::kernel::routing::NetCard::Type::Host, current_routing);
 123
 124   sg_host_t h = simgrid::s4u::Host::by_name_or_create(host->id);
 125   h->pimpl_netcard = netcard;
 126
 127   if(mount_list) {
 128     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
 129     mount_list = nullptr;
 130   }
 131
 132   if (host->coord && strcmp(host->coord, "")) {
 133     unsigned int cursor;
 134     char*str;
 135
 136     xbt_assert(COORD_HOST_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 137     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 138     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 139     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", host->id);
 140
 141     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),nullptr);
 142     xbt_dynar_foreach(ctn_str,cursor, str) {
 143       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 144       xbt_dynar_push(ctn,&val);
 145     }
 146     xbt_dynar_free(&ctn_str);
 147     xbt_dynar_shrink(ctn, 0);
 148     h->extension_set(COORD_HOST_LEVEL, (void *) ctn);
 149   }
 150
 151   simgrid::surf::Cpu *cpu = surf_cpu_model_pm->createCpu( h, host->speed_per_pstate, host->core_amount);
 152   if (host->state_trace)
 153     cpu->setStateTrace(host->state_trace);
 154   if (host->speed_trace)
 155     cpu->setSpeedTrace(host->speed_trace);
 156   surf_host_model->createHost(host->id, netcard, cpu)->attach(h);
 157
 158   if (host->properties) {
 159     xbt_dict_cursor_t cursor=nullptr;
 160     char *key,*data;
 161     xbt_dict_foreach(host->properties,cursor,key,data)
 162       h->setProperty(key,data);
 163     xbt_dict_free(&host->properties);
 164   }
 165
 166   if (host->pstate != 0)
 167     cpu->setPState(host->pstate);
 168
 169   simgrid::s4u::Host::onCreation(*h);
 170
 171   if (TRACE_is_enabled() && TRACE_needs_platform())
 172     sg_instr_new_host(host);
 173 }
 174
 175 /** @brief Add a "router" to the network element list */
 176 void sg_platf_new_router(sg_platf_router_cbarg_t router)
 177 {
 178   using simgrid::kernel::routing::AsCluster;
 179   simgrid::kernel::routing::AsImpl* current_routing = routing_get_current();
 180
 181   if (current_routing->hierarchy_ == simgrid::kernel::routing::AsImpl::RoutingMode::unset)
 182     current_routing->hierarchy_ = simgrid::kernel::routing::AsImpl::RoutingMode::base;
 183   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 184              "Refusing to create a router named '%s': this name already describes a node.", router->id);
 185
 186   simgrid::kernel::routing::NetCard* netcard =
 187     new simgrid::kernel::routing::NetCardImpl(router->id, simgrid::kernel::routing::NetCard::Type::Router, current_routing);
 188   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, netcard);
 189   XBT_DEBUG("Router '%s' has the id %d", router->id, netcard->id());
 190
 191   if (router->coord && strcmp(router->coord, "")) {
 192     unsigned int cursor;
 193     char*str;
 194
 195     xbt_assert(COORD_ASR_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 196     /* Pre-parse the host coordinates */
 197     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 198     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", router->id);
 199     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),nullptr);
 200     xbt_dynar_foreach(ctn_str,cursor, str) {
 201       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 202       xbt_dynar_push(ctn,&val);
 203     }
 204     xbt_dynar_free(&ctn_str);
 205     xbt_dynar_shrink(ctn, 0);
 206     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 207   }
 208
 209   auto cluster = dynamic_cast<AsCluster*>(current_routing);
 210   if(cluster != nullptr)
 211     cluster->router_ = static_cast<simgrid::kernel::routing::NetCard*>(xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL));
 212
 213   if (TRACE_is_enabled() && TRACE_needs_platform())
 214     sg_instr_new_router(router);
 215 }
 216
 217 void sg_platf_new_link(sg_platf_link_cbarg_t link){
 218   std::vector<char*> names;
 219
 220   if (link->policy == SURF_LINK_FULLDUPLEX) {
 221     names.push_back(bprintf("%s_UP", link->id));
 222     names.push_back(bprintf("%s_DOWN", link->id));
 223   } else {
 224     names.push_back(xbt_strdup(link->id));
 225   }
 226   for (auto link_name : names) {
 227     Link *l = surf_network_model->createLink(link_name, link->bandwidth, link->latency, link->policy, link->properties);
 228
 229     if (link->latency_trace)
 230       l->setLatencyTrace(link->latency_trace);
 231     if (link->bandwidth_trace)
 232       l->setBandwidthTrace(link->bandwidth_trace);
 233     if (link->state_trace)
 234       l->setStateTrace(link->state_trace);
 235
 236     xbt_free(link_name);
 237   }
 238
 239   simgrid::surf::on_link(link);
 240 }
 241
 242 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster)
 243 {
 244   using simgrid::kernel::routing::AsCluster;
 245   using simgrid::kernel::routing::AsClusterDragonfly;
 246   using simgrid::kernel::routing::AsClusterFatTree;
 247   using simgrid::kernel::routing::AsClusterTorus;
 248
 249   int rankId=0;
 250
 251   s_sg_platf_link_cbarg_t link;
 252
 253   // What an inventive way of initializing the AS that I have as ancestor :-(
 254   s_sg_platf_AS_cbarg_t AS;
 255   AS.id = cluster->id;
 256   switch (cluster->topology) {
 257   case SURF_CLUSTER_TORUS:
 258     AS.routing = A_surfxml_AS_routing_ClusterTorus;
 259     break;
 260   case SURF_CLUSTER_DRAGONFLY:
 261     AS.routing = A_surfxml_AS_routing_ClusterDragonfly;
 262     break;
 263   case SURF_CLUSTER_FAT_TREE:
 264     AS.routing = A_surfxml_AS_routing_ClusterFatTree;
 265     break;
 266   default:
 267     AS.routing = A_surfxml_AS_routing_Cluster;
 268     break;
 269   }
 270   sg_platf_new_AS_begin(&AS);
 271   simgrid::kernel::routing::AsCluster *current_as = static_cast<AsCluster*>(routing_get_current());
 272   current_as->parse_specific_arguments(cluster);
 273
 274   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 275     current_as->linkCountPerNode_++;
 276     current_as->hasLoopback_ = 1;
 277   }
 278
 279   if(cluster->limiter_link!=0){
 280     current_as->linkCountPerNode_++;
 281     current_as->hasLimiter_ = 1;
 282   }
 283
 284   std::vector<int> *radicals = explodesRadical(cluster->radical);
 285   for (int i : *radicals) {
 286     char * host_id = bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 287     char * link_id = bprintf("%s_link_%d", cluster->id, i);
 288
 289     XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
 290
 291     s_sg_platf_host_cbarg_t host;
 292     memset(&host, 0, sizeof(host));
 293     host.id = host_id;
 294     if ((cluster->properties != nullptr) && (!xbt_dict_is_empty(cluster->properties))) {
 295       xbt_dict_cursor_t cursor=nullptr;
 296       char *key,*data;
 297       host.properties = xbt_dict_new();
 298
 299       xbt_dict_foreach(cluster->properties,cursor,key,data) {
 300         xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 301       }
 302     }
 303
 304     host.speed_per_pstate = new std::vector<double>();
 305     host.speed_per_pstate->push_back(cluster->speed);
 306     host.pstate = 0;
 307     host.core_amount = cluster->core_amount;
 308     host.coord = "";
 309     sg_platf_new_host(&host);
 310     XBT_DEBUG("</host>");
 311
 312     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id, cluster->bw, cluster->lat);
 313
 314     s_surf_parsing_link_up_down_t info_lim, info_loop;
 315     // All links are saved in a matrix;
 316     // every row describes a single node; every node may have multiple links.
 317     // the first column may store a link from x to x if p_has_loopback is set
 318     // the second column may store a limiter link if p_has_limiter is set
 319     // other columns are to store one or more link for the node
 320
 321     //add a loopback link
 322     if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 323       char *tmp_link = bprintf("%s_loopback", link_id);
 324       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->loopback_bw);
 325
 326       memset(&link, 0, sizeof(link));
 327       link.id        = tmp_link;
 328       link.bandwidth = cluster->loopback_bw;
 329       link.latency   = cluster->loopback_lat;
 330       link.policy    = SURF_LINK_FATPIPE;
 331       sg_platf_new_link(&link);
 332       info_loop.linkUp = info_loop.linkDown = Link::byName(tmp_link);
 333       free(tmp_link);
 334       auto as_cluster = static_cast<AsCluster*>(current_as);
 335       xbt_dynar_set(as_cluster->privateLinks_, rankId*as_cluster->linkCountPerNode_, &info_loop);
 336     }
 337
 338     //add a limiter link (shared link to account for maximal bandwidth of the node)
 339     if(cluster->limiter_link!=0){
 340       char *tmp_link = bprintf("%s_limiter", link_id);
 341       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->limiter_link);
 342
 343       memset(&link, 0, sizeof(link));
 344       link.id = tmp_link;
 345       link.bandwidth = cluster->limiter_link;
 346       link.latency = 0;
 347       link.policy = SURF_LINK_SHARED;
 348       sg_platf_new_link(&link);
 349       info_lim.linkUp = info_lim.linkDown = Link::byName(tmp_link);
 350       free(tmp_link);
 351       xbt_dynar_set(current_as->privateLinks_, rankId * current_as->linkCountPerNode_ + current_as->hasLoopback_ , &info_lim);
 352     }
 353
 354     //call the cluster function that adds the others links
 355     if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 356       ((AsClusterFatTree*) current_as)->addProcessingNode(i);
 357     }
 358     else {
 359       current_as->create_links_for_node(cluster, i, rankId,
 360           rankId*current_as->linkCountPerNode_ + current_as->hasLoopback_ + current_as->hasLimiter_ );
 361     }
 362     xbt_free(link_id);
 363     xbt_free(host_id);
 364     rankId++;
 365   }
 366   delete radicals;
 367
 368   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 369   // and it's very useful to connect clusters together
 370   XBT_DEBUG(" ");
 371   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 372   char *newid = nullptr;
 373   s_sg_platf_router_cbarg_t router;
 374   memset(&router, 0, sizeof(router));
 375   router.id = cluster->router_id;
 376   if (!router.id || !strcmp(router.id, ""))
 377     router.id = newid = bprintf("%s%s_router%s", cluster->prefix, cluster->id, cluster->suffix);
 378   sg_platf_new_router(&router);
 379   current_as->router_ = (simgrid::kernel::routing::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 380   free(newid);
 381
 382   //Make the backbone
 383   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 384
 385     memset(&link, 0, sizeof(link));
 386     link.id        = bprintf("%s_backbone", cluster->id);
 387     link.bandwidth = cluster->bb_bw;
 388     link.latency   = cluster->bb_lat;
 389     link.policy    = cluster->bb_sharing_policy;
 390
 391     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id, cluster->bb_bw, cluster->bb_lat);
 392     sg_platf_new_link(&link);
 393
 394     routing_cluster_add_backbone(Link::byName(link.id));
 395     free((char*)link.id);
 396   }
 397
 398   XBT_DEBUG("</AS>");
 399   sg_platf_new_AS_seal();
 400
 401   simgrid::surf::on_cluster(cluster);
 402 }
 403 void routing_cluster_add_backbone(simgrid::surf::Link* bb) {
 404   simgrid::kernel::routing::AsCluster *cluster = dynamic_cast<simgrid::kernel::routing::AsCluster*>(current_routing);
 405
 406   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
 407   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->name());
 408
 409   cluster->backbone_ = bb;
 410   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->name());
 411 }
 412
 413 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 414 {
 415   std::vector<int> *radicals = explodesRadical(cabinet->radical);
 416
 417   for (int radical : *radicals) {
 418     char *hostname = bprintf("%s%d%s", cabinet->prefix, radical, cabinet->suffix);
 419     s_sg_platf_host_cbarg_t host;
 420     memset(&host, 0, sizeof(host));
 421     host.pstate           = 0;
 422     host.core_amount      = 1;
 423     host.id               = hostname;
 424     host.speed_per_pstate = new std::vector<double>();
 425     host.speed_per_pstate->push_back(cabinet->speed);
 426     sg_platf_new_host(&host);
 427     delete host.speed_per_pstate;
 428
 429     s_sg_platf_link_cbarg_t link;
 430     memset(&link, 0, sizeof(link));
 431     link.policy    = SURF_LINK_FULLDUPLEX;
 432     link.latency   = cabinet->lat;
 433     link.bandwidth = cabinet->bw;
 434     link.id        = bprintf("link_%s",hostname);
 435     sg_platf_new_link(&link);
 436     free((char*)link.id);
 437
 438     s_sg_platf_host_link_cbarg_t host_link;
 439     memset(&host_link, 0, sizeof(host_link));
 440     host_link.id        = hostname;
 441     host_link.link_up   = bprintf("link_%s_UP",hostname);
 442     host_link.link_down = bprintf("link_%s_DOWN",hostname);
 443     sg_platf_new_hostlink(&host_link);
 444     free((char*)host_link.link_up);
 445     free((char*)host_link.link_down);
 446
 447     free(hostname);
 448   }
 449   delete(radicals);
 450 }
 451
 452 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
 453 {
 454   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 455                "Refusing to add a second storage named \"%s\"", storage->id);
 456
 457   void* stype = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 458   xbt_assert(stype,"No storage type '%s'", storage->type_id);
 459
 460   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 461       storage->id,
 462       storage->type_id,
 463       storage->content);
 464
 465   xbt_lib_set(storage_lib, storage->id, ROUTING_STORAGE_LEVEL, (void *) xbt_strdup(storage->type_id));
 466
 467   // if storage content is not specified use the content of storage_type if any
 468   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 469     storage->content = ((storage_type_t) stype)->content;
 470     storage->content_type = ((storage_type_t) stype)->content_type;
 471     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 472         storage->id,((storage_type_t) stype)->content_type,
 473         ((storage_type_t) stype)->type_id);
 474   }
 475
 476   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 477       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 478       "\n\t\tproperties '%p''\n",
 479       storage->id,
 480       ((storage_type_t) stype)->model,
 481       ((storage_type_t) stype)->type_id,
 482       storage->content,
 483       storage->content_type,
 484     storage->properties);
 485
 486   surf_storage_model->createStorage(storage->id,
 487                                      ((storage_type_t) stype)->type_id,
 488                                      storage->content,
 489                                      storage->content_type,
 490                    storage->properties,
 491                                      storage->attach);
 492 }
 493 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
 494
 495   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 496                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 497
 498   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 499   stype->model = xbt_strdup(storage_type->model);
 500   stype->properties = storage_type->properties;
 501   stype->content = xbt_strdup(storage_type->content);
 502   stype->content_type = xbt_strdup(storage_type->content_type);
 503   stype->type_id = xbt_strdup(storage_type->id);
 504   stype->size = storage_type->size;
 505   stype->model_properties = storage_type->model_properties;
 506
 507   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 508       "content '%s', and content_type '%s'",
 509       stype->type_id,
 510       stype->model,
 511       storage_type->content,
 512       storage_type->content_type);
 513
 514   xbt_lib_set(storage_type_lib,
 515       stype->type_id,
 516       ROUTING_STORAGE_TYPE_LEVEL,
 517       (void *) stype);
 518 }
 519
 520 static void mount_free(void *p)
 521 {
 522   mount_t mnt = (mount_t) p;
 523   xbt_free(mnt->name);
 524 }
 525
 526 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
 527   xbt_assert(xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL),
 528       "Cannot mount non-existent disk \"%s\"", mount->storageId);
 529
 530   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 531
 532   s_mount_t mnt;
 533   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 534   mnt.name = xbt_strdup(mount->name);
 535
 536   if(!mount_list){
 537     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 538     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 539   }
 540   xbt_dynar_push(mount_list, &mnt);
 541 }
 542
 543 void sg_platf_new_route(sg_platf_route_cbarg_t route)
 544 {
 545   routing_get_current()->addRoute(route);
 546 }
 547
 548 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute)
 549 {
 550   routing_get_current()->addBypassRoute(bypassRoute);
 551 }
 552
 553 void sg_platf_new_process(sg_platf_process_cbarg_t process)
 554 {
 555   sg_host_t host = sg_host_by_name(process->host);
 556   if (!host) {
 557     // The requested host does not exist. Do a nice message to the user
 558     char *tmp = bprintf("Cannot create process '%s': host '%s' does not exist\nExisting hosts: '",process->function, process->host);
 559     xbt_strbuff_t msg = xbt_strbuff_new_from(tmp);
 560     free(tmp);
 561     xbt_dynar_t all_hosts = xbt_dynar_sort_strings(sg_hosts_as_dynar());
 562     simgrid::s4u::Host* host;
 563     unsigned int cursor;
 564     xbt_dynar_foreach(all_hosts,cursor, host) {
 565       xbt_strbuff_append(msg,host->name().c_str());
 566       xbt_strbuff_append(msg,"', '");
 567       if (msg->used > 1024) {
 568         msg->data[msg->used-3]='\0';
 569         msg->used -= 3;
 570
 571         xbt_strbuff_append(msg," ...(list truncated)......");// That will be shortened by 3 chars when existing the loop
 572       }
 573     }
 574     msg->data[msg->used-3]='\0';
 575     xbt_die("%s", msg->data);
 576   }
 577   simgrid::simix::ActorCodeFactory& factory = SIMIX_get_actor_code_factory(process->function);
 578   xbt_assert(factory, "Function '%s' unknown", process->function);
 579
 580   double start_time = process->start_time;
 581   double kill_time  = process->kill_time;
 582   int auto_restart = process->on_failure == SURF_PROCESS_ON_FAILURE_DIE ? 0 : 1;
 583
 584   std::vector<std::string> args(process->argv, process->argv + process->argc);
 585   std::function<void()> code = factory(std::move(args));
 586
 587   smx_process_arg_t arg = nullptr;
 588   smx_process_t process_created = nullptr;
 589
 590   arg = new simgrid::simix::ProcessArg();
 591   arg->name = std::string(process->argv[0]);
 592   arg->code = code;
 593   arg->data = nullptr;
 594   arg->hostname = sg_host_get_name(host);
 595   arg->kill_time = kill_time;
 596   arg->properties = current_property_set;
 597   if (!sg_host_simix(host)->boot_processes)
 598     sg_host_simix(host)->boot_processes = xbt_dynar_new(sizeof(smx_process_arg_t), _SIMIX_host_free_process_arg);
 599
 600   xbt_dynar_push_as(sg_host_simix(host)->boot_processes,smx_process_arg_t,arg);
 601
 602   if (start_time > SIMIX_get_clock()) {
 603
 604     arg = new simgrid::simix::ProcessArg();
 605     arg->name = std::string(process->argv[0]);
 606     arg->code = std::move(code);
 607     arg->data = nullptr;
 608     arg->hostname = sg_host_get_name(host);
 609     arg->kill_time = kill_time;
 610     arg->properties = current_property_set;
 611
 612     XBT_DEBUG("Process %s(%s) will be started at time %f",
 613       arg->name.c_str(), arg->hostname, start_time);
 614     SIMIX_timer_set(start_time, [=]() {
 615       simix_global->create_process_function(
 616                                             arg->name.c_str(),
 617                                             std::move(arg->code),
 618                                             arg->data,
 619                                             arg->hostname,
 620                                             arg->kill_time,
 621                                             arg->properties,
 622                                             arg->auto_restart,
 623                                             nullptr);
 624       delete arg;
 625     });
 626   } else {                      // start_time <= SIMIX_get_clock()
 627     XBT_DEBUG("Starting Process %s(%s) right now",
 628       arg->name.c_str(), sg_host_get_name(host));
 629
 630     if (simix_global->create_process_function)
 631       process_created = simix_global->create_process_function(
 632           arg->name.c_str(), std::move(code), nullptr,
 633           sg_host_get_name(host), kill_time,
 634           current_property_set, auto_restart, nullptr);
 635     else
 636       process_created = simcall_process_create(
 637           arg->name.c_str(), std::move(code), nullptr, sg_host_get_name(host), kill_time,
 638           current_property_set,auto_restart);
 639
 640     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
 641     if (!process_created) {
 642       return;
 643     }
 644   }
 645   current_property_set = nullptr;
 646 }
 647
 648 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
 649 {
 650   using simgrid::kernel::routing::NetCard;
 651   using simgrid::kernel::routing::AsCluster;
 652
 653   char *host_id = bprintf("peer_%s", peer->id);
 654   char *router_id = bprintf("router_%s", peer->id);
 655
 656   XBT_DEBUG(" ");
 657
 658   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
 659   s_sg_platf_AS_cbarg_t AS;
 660   AS.id      = peer->id;
 661   AS.routing = A_surfxml_AS_routing_Cluster;
 662   sg_platf_new_AS_begin(&AS);
 663
 664   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->speed);
 665   s_sg_platf_host_cbarg_t host;
 666   memset(&host, 0, sizeof(host));
 667   host.id = host_id;
 668
 669   host.speed_per_pstate = new std::vector<double>();
 670   host.speed_per_pstate->push_back(peer->speed);
 671   host.pstate = 0;
 672   host.speed_trace = peer->availability_trace;
 673   host.state_trace = peer->state_trace;
 674   host.core_amount = 1;
 675   sg_platf_new_host(&host);
 676   delete host.speed_per_pstate;
 677
 678   s_sg_platf_link_cbarg_t link;
 679   memset(&link, 0, sizeof(link));
 680   link.policy  = SURF_LINK_SHARED;
 681   link.latency = peer->lat;
 682
 683   char* link_up = bprintf("link_%s_UP",peer->id);
 684   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up, peer->bw_out, peer->lat);
 685   link.id = link_up;
 686   link.bandwidth = peer->bw_out;
 687   sg_platf_new_link(&link);
 688
 689   char* link_down = bprintf("link_%s_DOWN",peer->id);
 690   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down, peer->bw_in, peer->lat);
 691   link.id = link_down;
 692   link.bandwidth = peer->bw_in;
 693   sg_platf_new_link(&link);
 694
 695   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
 696   s_sg_platf_host_link_cbarg_t host_link;
 697   memset(&host_link, 0, sizeof(host_link));
 698   host_link.id        = host_id;
 699   host_link.link_up   = link_up;
 700   host_link.link_down = link_down;
 701   sg_platf_new_hostlink(&host_link);
 702   free(link_up);
 703   free(link_down);
 704
 705   XBT_DEBUG("<router id=\"%s\"/>", router_id);
 706   s_sg_platf_router_cbarg_t router;
 707   memset(&router, 0, sizeof(router));
 708   router.id = router_id;
 709   router.coord = peer->coord;
 710   sg_platf_new_router(&router);
 711
 712   XBT_DEBUG("</AS>");
 713   sg_platf_new_AS_seal();
 714   XBT_DEBUG(" ");
 715
 716   free(router_id);
 717   free(host_id);
 718 }
 719
 720 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
 721
 722 void sg_platf_end() {
 723   simgrid::surf::on_postparse();
 724 }
 725
 726 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
 727 static void surf_config_models_setup()
 728 {
 729   const char *host_model_name;
 730   const char *vm_model_name;
 731   int host_id = -1;
 732   int vm_id = -1;
 733   char *network_model_name = nullptr;
 734   char *cpu_model_name = nullptr;
 735   int storage_id = -1;
 736   char *storage_model_name = nullptr;
 737
 738   host_model_name    = xbt_cfg_get_string("host/model");
 739   vm_model_name      = xbt_cfg_get_string("vm/model");
 740   network_model_name = xbt_cfg_get_string("network/model");
 741   cpu_model_name     = xbt_cfg_get_string("cpu/model");
 742   storage_model_name = xbt_cfg_get_string("storage/model");
 743
 744   /* Check whether we use a net/cpu model differing from the default ones, in which case
 745    * we should switch to the "compound" host model to correctly dispatch stuff to
 746    * the right net/cpu models.
 747    */
 748
 749   if ((!xbt_cfg_is_default_value("network/model") ||
 750        !xbt_cfg_is_default_value("cpu/model")) &&
 751       xbt_cfg_is_default_value("host/model")) {
 752     host_model_name = "compound";
 753     xbt_cfg_set_string("host/model", host_model_name);
 754   }
 755
 756   XBT_DEBUG("host model: %s", host_model_name);
 757   host_id = find_model_description(surf_host_model_description, host_model_name);
 758   if (!strcmp(host_model_name, "compound")) {
 759     int network_id = -1;
 760     int cpu_id = -1;
 761
 762     xbt_assert(cpu_model_name,
 763                 "Set a cpu model to use with the 'compound' host model");
 764
 765     xbt_assert(network_model_name,
 766                 "Set a network model to use with the 'compound' host model");
 767
 768     if(surf_cpu_model_init_preparse){
 769       surf_cpu_model_init_preparse();
 770     } else {
 771       cpu_id =
 772           find_model_description(surf_cpu_model_description, cpu_model_name);
 773       surf_cpu_model_description[cpu_id].model_init_preparse();
 774     }
 775
 776     network_id =
 777         find_model_description(surf_network_model_description,
 778                                network_model_name);
 779     surf_network_model_description[network_id].model_init_preparse();
 780   }
 781
 782   XBT_DEBUG("Call host_model_init");
 783   surf_host_model_description[host_id].model_init_preparse();
 784
 785   XBT_DEBUG("Call vm_model_init");
 786   vm_id = find_model_description(surf_vm_model_description, vm_model_name);
 787   surf_vm_model_description[vm_id].model_init_preparse();
 788
 789   XBT_DEBUG("Call storage_model_init");
 790   storage_id = find_model_description(surf_storage_model_description, storage_model_name);
 791   surf_storage_model_description[storage_id].model_init_preparse();
 792
 793 }
 794
 795 /**
 796  * \brief Make a new routing component to the platform
 797  *
 798  * Add a new autonomous system to the platform. Any elements (such as host,
 799  * router or sub-AS) added after this call and before the corresponding call
 800  * to sg_platf_new_AS_seal() will be added to this AS.
 801  *
 802  * Once this function was called, the configuration concerning the used
 803  * models cannot be changed anymore.
 804  *
 805  * @param AS the parameters defining the AS to build.
 806  */
 807 simgrid::s4u::As * sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
 808 {
 809   if (!surf_parse_models_setup_already_called) {
 810     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
 811      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 812      *
 813      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
 814      * (FIXME: check it out by creating a file beginning with one of these tags)
 815      * but cluster and peer create ASes internally, so putting the code in there is ok.
 816      */
 817     surf_parse_models_setup_already_called = 1;
 818     surf_config_models_setup();
 819   }
 820
 821   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 822       "Refusing to create a second AS called \"%s\".", AS->id);
 823
 824   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
 825                             * any further config now that we created some real content */
 826
 827
 828   /* search the routing model */
 829   simgrid::kernel::routing::AsImpl *new_as = nullptr;
 830   switch(AS->routing){
 831     case A_surfxml_AS_routing_Cluster:        new_as = new simgrid::kernel::routing::AsCluster(AS->id);        break;
 832     case A_surfxml_AS_routing_ClusterDragonfly:   new_as = new simgrid::kernel::routing::AsClusterDragonfly(AS->id);   break;
 833     case A_surfxml_AS_routing_ClusterTorus:   new_as = new simgrid::kernel::routing::AsClusterTorus(AS->id);   break;
 834     case A_surfxml_AS_routing_ClusterFatTree: new_as = new simgrid::kernel::routing::AsClusterFatTree(AS->id); break;
 835     case A_surfxml_AS_routing_Dijkstra:       new_as = new simgrid::kernel::routing::AsDijkstra(AS->id, 0);    break;
 836     case A_surfxml_AS_routing_DijkstraCache:  new_as = new simgrid::kernel::routing::AsDijkstra(AS->id, 1);    break;
 837     case A_surfxml_AS_routing_Floyd:          new_as = new simgrid::kernel::routing::AsFloyd(AS->id);          break;
 838     case A_surfxml_AS_routing_Full:           new_as = new simgrid::kernel::routing::AsFull(AS->id);           break;
 839     case A_surfxml_AS_routing_None:           new_as = new simgrid::kernel::routing::AsNone(AS->id);           break;
 840     case A_surfxml_AS_routing_Vivaldi:        new_as = new simgrid::kernel::routing::AsVivaldi(AS->id);        break;
 841     default:                                  xbt_die("Not a valid model!");                        break;
 842   }
 843
 844   /* make a new routing component */
 845   simgrid::kernel::routing::NetCard *netcard = new simgrid::kernel::routing::NetCardImpl(new_as->name(), simgrid::kernel::routing::NetCard::Type::As, current_routing);
 846
 847   if (current_routing == nullptr && routing_platf->root_ == nullptr) { /* it is the first one */
 848     routing_platf->root_ = new_as;
 849   } else if (current_routing != nullptr && routing_platf->root_ != nullptr) {
 850
 851     xbt_assert(!xbt_dict_get_or_null(current_routing->children(), AS->id),
 852                "The AS \"%s\" already exists", AS->id);
 853     /* it is a part of the tree */
 854     new_as->father_ = current_routing;
 855     /* set the father behavior */
 856     if (current_routing->hierarchy_ == simgrid::kernel::routing::AsImpl::RoutingMode::unset)
 857       current_routing->hierarchy_ = simgrid::kernel::routing::AsImpl::RoutingMode::recursive;
 858     /* add to the sons dictionary */
 859     xbt_dict_set(current_routing->children(), AS->id, (void *) new_as, nullptr);
 860   } else {
 861     THROWF(arg_error, 0, "All defined components must belong to a AS");
 862   }
 863
 864   xbt_lib_set(as_router_lib, netcard->name(), ROUTING_ASR_LEVEL, (void *) netcard);
 865   XBT_DEBUG("Having set name '%s' id '%d'", new_as->name(), netcard->id());
 866
 867   /* set the new current component of the tree */
 868   current_routing = new_as;
 869   current_routing->netcard_ = netcard;
 870
 871   simgrid::kernel::routing::asCreatedCallbacks(new_as);
 872   if (TRACE_is_enabled())
 873     sg_instr_AS_begin(AS);
 874
 875   return new_as;
 876 }
 877
 878 /**
 879  * \brief Specify that the description of the current AS is finished
 880  *
 881  * Once you've declared all the content of your AS, you have to seal
 882  * it with this call. Your AS is not usable until you call this function.
 883  */
 884 void sg_platf_new_AS_seal()
 885 {
 886   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
 887   current_routing->seal();
 888   current_routing = static_cast<simgrid::kernel::routing::AsImpl*>(current_routing->father());
 889
 890   if (TRACE_is_enabled())
 891     sg_instr_AS_end();
 892 }
 893
 894 /** @brief Add a link connecting an host to the rest of its AS (which must be cluster or vivaldi) */
 895 void sg_platf_new_hostlink(sg_platf_host_link_cbarg_t hostlink)
 896 {
 897   simgrid::kernel::routing::NetCard *netcard = sg_host_by_name(hostlink->id)->pimpl_netcard;
 898   xbt_assert(netcard, "Host '%s' not found!", hostlink->id);
 899   xbt_assert(dynamic_cast<simgrid::kernel::routing::AsCluster*>(current_routing),
 900       "Only hosts from Cluster and Vivaldi ASes can get an host_link.");
 901
 902   s_surf_parsing_link_up_down_t link_up_down;
 903   link_up_down.linkUp = Link::byName(hostlink->link_up);
 904   link_up_down.linkDown = Link::byName(hostlink->link_down);
 905
 906   xbt_assert(link_up_down.linkUp, "Link '%s' not found!",hostlink->link_up);
 907   xbt_assert(link_up_down.linkDown, "Link '%s' not found!",hostlink->link_down);
 908
 909   // If dynar is is greater than netcard id and if the host_link is already defined
 910   auto as_cluster = static_cast<simgrid::kernel::routing::AsCluster*>(current_routing);
 911   if((int)xbt_dynar_length(as_cluster->privateLinks_) > netcard->id() &&
 912       xbt_dynar_get_as(as_cluster->privateLinks_, netcard->id(), void*))
 913   surf_parse_error("Host_link for '%s' is already defined!",hostlink->id);
 914
 915   XBT_DEBUG("Push Host_link for host '%s' to position %d", netcard->name(), netcard->id());
 916   xbt_dynar_set_as(as_cluster->privateLinks_, netcard->id(), s_surf_parsing_link_up_down_t, link_up_down);
 917 }